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Message-ID: <20210412095457.15095-2-billy_tsai@aspeedtech.com>
Date: Mon, 12 Apr 2021 17:54:54 +0800
From: Billy Tsai <billy_tsai@...eedtech.com>
To: <lee.jones@...aro.org>, <robh+dt@...nel.org>, <joel@....id.au>,
<andrew@...id.au>, <thierry.reding@...il.com>,
<u.kleine-koenig@...gutronix.de>, <p.zabel@...gutronix.de>,
<billy_tasi@...eedtech.com>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-aspeed@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
<linux-pwm@...r.kernel.org>
CC: <BMC-SW@...eedtech.com>
Subject: [PATCH 1/4] dt-bindings: Add bindings for aspeed pwm-tach.
This patch adds device bindings for aspeed pwm-tach device which is a
multi-function device include pwn and tach function.
Signed-off-by: Billy Tsai <billy_tsai@...eedtech.com>
---
.../bindings/mfd/aspeed,ast2600-pwm-tach.yaml | 52 +++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml
diff --git a/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml b/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml
new file mode 100644
index 000000000000..73512ff71d23
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2021 ASPEED, Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/aspeed,ast2600-pwn-tach.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PWM Tach controller Device Tree Bindings
+
+description: |
+ The PWM Tach controller is represented as a multi-function device which includes:
+ PWM
+ Tach
+
+maintainers:
+ - Billy Tsai <billy_tasi@...eedtech.com>
+
+properties:
+ compatible:
+ - items:
+ - enum:
+ - aspeed,ast2600-pwn-tach
+ - const: syscon
+ - const: simple-mfd
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ pwm_tach: pwm_tach@...10000 {
+ compatible = "aspeed,ast2600-pwm-tach", "simple-mfd", "syscon";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x1e610000 0x100>;
+
+ pwm: pwm@0 {
+ compatible = "aspeed,ast2600-pwm";
+ #pwm-cells = <3>;
+ reg = <0x0 0x100>;
+ };
+
+ tach: tach@0 {
+ compatible = "aspeed,ast2600-tach";
+ reg = <0x0 0x100>;
+ };
+ };
--
2.25.1
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